Organic-inorganic hybrid perovskite photodetectors achieved via brush-coating process

Author(s):  
Siheng Xiang ◽  
Jiang Huang ◽  
Huaiyuan Dong
Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 761
Author(s):  
Zixiao Zhou ◽  
Xiaoping Zou ◽  
Jialin Zhu ◽  
Jin Cheng ◽  
Haiyan Ren ◽  
...  

The investigation of crystal growth is crucial for us to improve the film quality and photophysical properties of CH3NH3PbI3 (MAPbI3). In the two-step spin-coating process, the crystal structure could be modulated by controlling the growth conditions of PbI2 and CH3NH3I (MAI) layers. In this paper, the PbI2 layer was treated with annealing under different times. A liquid–liquid diffusion (LLD) mechanism is proposed to modify the deposition of MAI precursor solution and enhance the flatness of organic–inorganic hybrid perovskite film. Furthermore, the perovskite films are prepared using different concentrations of MAI. The evolution process of perovskite structure is observed by modulating the concentration of MAI. The spin-coating of moderate MAI tends to form high quality MAPbI3 films with enhanced absorption and carrier extraction capabilities. The high concentration of MAI would cause the perovskite phase transition, which provides a novel perspective to modulate the structure of organic–inorganic hybrid perovskite in the two-step spin-coating process, although it deteriorates the device performance.


2020 ◽  
Vol 124 (6) ◽  
pp. 3915-3922 ◽  
Author(s):  
Hyang Mi Yu ◽  
Hye Min Oh ◽  
Dae Young Park ◽  
Mun Seok Jeong

Author(s):  
Maryam Bari ◽  
Alexei A. Bokov ◽  
Zuo-Guang Ye

Polarized light microscopy reveals twin domains and symmetry of the phases in CH3NH3PbBr3 crystal; domain structure remains unresponsive to electric field but changes under external stress, confirming ferroelasticity while ruling out ferroelectricity.


2020 ◽  
Vol 707 (1) ◽  
pp. 140-146
Author(s):  
Juho Kim ◽  
Do Quyen ◽  
Wook Ahn ◽  
Tae-Dong Kim ◽  
Namchul Cho

ACS Nano ◽  
2016 ◽  
Vol 10 (8) ◽  
pp. 7907-7914 ◽  
Author(s):  
Taewoo Jeon ◽  
Hyeong Min Jin ◽  
Seung Hyun Lee ◽  
Ju Min Lee ◽  
Hyung Il Park ◽  
...  

Author(s):  
Wenbin Guo ◽  
Guanhua Ren ◽  
Wenbin Han ◽  
Yanyu Deng ◽  
Wei Wu ◽  
...  

Organic-inorganic hybrid perovskite solar cells (PSCs) have made unprecedented progress in the past ten years, the power conversion efficiency of which increased from 3.8% in 2009 to 25.5% in 2019....


2018 ◽  
Vol 10 (46) ◽  
pp. 39448-39454 ◽  
Author(s):  
Cheng Guo ◽  
Xiaoyu Gao ◽  
Fang-Ju Lin ◽  
Qianbin Wang ◽  
Lili Meng ◽  
...  

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